Figure 1 shows the measured Color Gamuts for the Galaxy S4 Screen Modes
along with the Standard Color Gamut in black.
The outermost white curve is the limits of human color vision -
the horseshoe is the pure spectral colors and the diagonal is the Line of Purples.
A given display can only reproduce the colors that lie inside of the
triangle formed by its primary colors.
Highly saturated colors seldom occur in nature so the colors that are outside
of the Standard Gamut are seldom needed and are unlikely to be noticed or
missed in the overwhelming majority of real images. Note that consumer
content does not include colors outside of the Standard Gamut,
so a display with a wider Color Gamut cannot show colors that aren't in the
original and will only produce inaccurate exaggerated on-screen colors.
The dots in the center are the measured color of White for each of the
Screen Modes along with the D6500 Standard White,
which is marked as a white circle.

To deliver accurate image colors for consumer photo and video content the
display must match the Standard Color Gamut and the Standard Color of White.